Emerald Energy Plc (Emerald Energy) is a UK based energy company. It is engaged in the exploration and production of hydrocarbons in South America and the Middle East. Emerald Energy has assets in Middle East (Syria) and South America (Colombia & Peru). The company is participating in three Association Contracts with Ecopetrol, the Colombian state oil company, in several exploration and production contracts issued by the National Hydrocarbon Agency of Colombia (ANH). Further, the company continues to seek new exploration opportunities in Colombia and other countries of South America. In the Middle East, Emerald Energy is involved in exploration activities of block 26 in Syria, whereas in Peru, the company operates in Block 163, which is located in the Ucayali basin. The company is headquartered in London, the UK.

In October 2009, Sinochem Corporation, a diversified company, through its subsidiary Sinochem Resources UK Limited, acquired all the issued and outstanding shares of Emerald for a purchase consideration of GBP532.1 million.